content: /*
   * Copyright 2016-present David Karnok
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package hu.akarnokd.rxjava3.math;
  
  import io.reactivex.rxjava3.core.*;
  import io.reactivex.rxjava3.internal.observers.DeferredScalarObserver;
  
  public class ObservableAverageFloat extends ObservableWithSource<Number, Float> {
  
      public ObservableAverageFloat(ObservableSource<Number> source) {
          super(source);
      }
  
      @Override
      protected void subscribeActual(Observer<? super Float> observer) {
          source.subscribe(new AverageFloatObserver(observer));
      }
  
      static final class AverageFloatObserver extends DeferredScalarObserver<Number, Float> {
  
          private static final long serialVersionUID = -4845767048730060914L;
  
          float accumulator;
  
          int count;
  
          AverageFloatObserver(Observer<? super Float> downstream) {
              super(downstream);
          }
  
          @Override
          public void onNext(Number value) {
              count++;
              accumulator += value.floatValue();
          }
  
          @Override
          public void onComplete() {
              int c = count;
              if (c != 0) {
                  complete(accumulator / c);
              } else {
                  downstream.onComplete();
              }
          }
  
      }
  }
  